Ablated AVnRT, pregnancy and sinus tachycardia

I'm 32. Had history of palpitations about once a year for maybe 8-9 years with no major discomfort. Always reverted when I would lie down. Got diagnosed after a casual mention to a doctor, who advised ECG during the episode. Was prescribed Diltiazem which I took for 3 months and Then got RFA done. That was 2 years ago and I've been asymptomatic since then. Echo was normal as were other parameters. I've always had a normal pulse rate of around 88-90/min. It did increase during exercise and fever etc but never alarmingly.
Now I'm pregnant. At 34 weeks during an ECG my HR was 125 per minute accompanied by nonspecific ST and T changes. We suspected it to have some connection with some amount of exertion, my having to lie supine for 5-7 minutes before they could get a graph and I had started feeling uncomfortable. My cardiologist reassured me that I don't have any cardiac abnormality. We then checked my pulse on waking up in morning. It was 90/min. Then I lay down supine for 3-4 minutes before again checking the pulse. It had leapt upto 102/min.
The problem is the hospital where my delivery is scheduled doesn't have a cardiologist. And others are too wary without support and seem to think of my pregnancy as a high risk one.
My questions are
Is my pregnancy really a high risk one?
Is Ceasarian section a certainty?
What kind of complications can be expected during a normal delivery if allowed?
Is presence of a cardiologist mandatory or very important?

Thanks